Bottom-fixed type rolling pillow

ABSTRACT

A bottom-fixed type rolling pillow, which can continuously maintain a comfortable and correct sleep position of a user by moving the central axis of a cushion member by the movement of a user, is proposed. The bottom-fixed type rolling pillow includes: a base member providing a supporting force while being located on a floor, and having an arcuate-grooved receiving space formed on an upper surface thereof so as to receive a head of a user in the receiving space; a cushion member movably mounted in the receiving space of the base member and configured to support the head of the user; and a cushion moving member movably coupling the cushion member to the base member, and configured to allow the cushion member to be moved by movement of the user.

TECHNICAL FIELD

The present invention relates to a bottom-fixed type rolling pillow and,more particularly, to a bottom-fixed type rolling pillow capable ofnaturally moving the central axis of a cushion member by the movement ofa user so that the user can maintain a comfortable and correct sleepposture.

BACKGROUND ART

In general, the basic posture of sleep is a posture in which a personlies with both shoulders on the floor and looking at the ceiling. It isknown that there is not abnormality in sleep health even when a personcan sleep only 50% of sleep time with the above posture.

Typically, when a person lying for sleep, the entire body of the personis affected by gravity, and an average of about 20 to 30 times of bodyturning occurs.

At this time, when a user using a general pillow turns the body, thecentral axis of the user is changed and the neck and the shoulder andtwisted. Accordingly, force is applied to the neck or the shoulder todisturb comfortable sleep.

As a related art, a pillow for correcting sleep posture is disclosed inKorean Utility Model Registration No. 20-0469632.

The related art proposes the pillow, which has an upper wall extendedupward from left and right sides of an upper surface of a bodysupporting the user's head, so that the user's head interferes with theupper wall so that the user is prevented from rolling sideways toprevent the user from turning sideways.

However, in the related art, a bottom surface of the body is formed inflat surface and the user's head interferes with the upper wall when theuser turns sideways to hold the sleep position in a direction in whichthe face of the user faces upward. Therefore, it may be a strain on thecervical vertebral and the spine.

DISCLOSURE Technical Problem

Accordingly, the present invention has been made keeping in mind theabove problems occurring in the prior art, and an objective of thepresent invention is to provide a bottom-fixed type rolling pillowcapable of continuously maintaining a comfortable posture by maintainingthe center of a user by the movement of a cushion member when the userturns the user's body during sleep.

Another objective of the present invention is to provide a bottom-fixedtype rolling pillow capable of maintaining the shoulder or the neck in acorrect posture without twisting by allowing the movement of a cushionmember to be moved in a longitudinal or a transverse direction thereofby the movement of the user.

A further objective of the present invention is to provide abottom-fixed type rolling pillow capable of using a cushion member in afixed state while selectively restraining the movement of the cushionmember.

Technical Solution

In order to accomplish the above objectives, the present inventionprovides a bottom-fixed type rolling pillow. The bottom-fixed typerolling pillow may include: a base member providing a supporting forcewhile being located on a floor, and having an arcuate-grooved receivingspace formed on an upper surface thereof so as to receive a head of auser in the receiving space; a cushion member movably mounted in thereceiving space of the base member and configured to support the head ofthe user; and a cushion moving member movably coupling the cushionmember to the base member, and configured to allow the cushion member tobe moved by movement of the user.

The cushion moving member may include: guide rails formed in at leastone direction of a longitudinal direction and a transverse direction ofan upper surface of the receiving space of the base member so as toprovide a moving path of the cushion member; a slider movably coupled tothe guide rails while being fixed to a lower surface of the cushionmember and configured to be moved along the guide rails; and rollersmounted to the upper surface of the base member so as to be idle-rotatedand configured to support the slider.

The guide rails may include transverse rails having groove shapesextended along the longitudinal direction of the base member, and therollers may have guide wheels which may have wheel shapes and beconfigured to be rotated forward or rearward in directions correspondingto longitudinal directions of the transverse rails so as to move theslider along the transverse rails.

The guide rails may include: transverse rails having groove shapesextended along the longitudinal direction of the base member; andlongitudinal rails having groove shapes extended along the transversedirection of the base member and arranged perpendicular to thetransverse rails, and the rollers may have guide balls which have ballshapes and be configured to be rotated forward or rearward in directionscorresponding to the transverse rails and the longitudinal rails so asto move the slider along the transverse rails and the longitudinalrails.

The cushion moving member may include roller brakes configured toselectively allow movement of the slider while selectively restrainingrotation of the rollers.

The roller brakes may include pressing protrusions, which may be mountedto the base member and configured to be locked to portions of therollers by pressure of the user to prevent the rollers from beingarbitrarily rotated.

Advantageous Effects

As described above, the bottom-fixed type rolling pillow according tothe present invention is configured such that the cushion moving memberallows the cushion member supporting the user's head to be moved by themovement of the user. Accordingly, when the user turns his/her bodyduring sleep, the center of the user is maintained by the movement ofthe cushion member, so that the user can continuously maintain acomfortable and correct sleep position.

In detail, according to the present invention, the cushion member ismoved along the guide rails together with the slider by the rollers, sothat the cushion member can be efficiently moved by the movement of theuser. Accordingly, the center of the user can be maintained even whenthe user moves, thereby allowing the sleep position to be maintainedwithout twisting the shoulder or the neck.

In addition, according to the present invention, the guide wheel-typerollers can allow the cushion member to be moved in the longitudinaldirection, and the guide ball-type rollers can allow the cushion memberto be moved in both the longitudinal direction and transverse direction.

In addition, according to the present invention, the roller brakes mayselectively restrain the rotation of the rollers. Accordingly, ifnecessary, the cushion member can be easily converted into a fixed typeand used.

Effects obtainable in the disclosed embodiments are not limited to theeffects mentioned above, and other effects not mentioned will be clearlyunderstood by those of ordinary skill in the art to which theembodiments disclosed from the following description belong.

DESCRIPTION OF DRAWINGS

FIG. 1 is an assembled perspective view showing a bottom-fixed typerolling pillow according to an embodiment of the present invention;

FIG. 2 is a bottom perspective view showing the bottom-fixed typerolling pillow according to the embodiment of the present invention;

FIG. 3 is a perspective view showing the bottom-fixed type rollingpillow without a cushion member according to the embodiment of thepresent invention;

FIG. 4 is a perspective view showing the bottom-fixed type rollingpillow without the cushion member and a slider according to theembodiment of the present invention; and

FIG. 5 is a structure view showing a cushion moving member according toanother embodiment of the present invention.

BEST MODE

Hereinbelow, exemplary embodiments of the present invention will bedescribed in detail with reference to the accompanying drawings. In thefollowing description, it is to be noted that, the functions ofconventional elements and the detailed description of elements relatedwith the present invention will be omitted.

Reference will now be made in detail to various embodiments of thepresent invention, specific examples of which are illustrated in theaccompanying drawings and described below, since the embodiments of thepresent invention can be variously modified in many different forms.While the present invention will be described in conjunction withexemplary embodiments thereof, it is to be understood that the presentdescription is not intended to limit the present invention to thoseexemplary embodiments. On the contrary, the present invention isintended to cover not only the exemplary embodiments, but also variousalternatives, modifications, equivalents and other embodiments that maybe included within the spirit and scope of the present invention asdefined by the appended claims.

It will be understood that when an element is referred to as being“coupled” or “connected” to another element, it can be directly coupledor connected to the other element or intervening elements may be presenttherebetween. In contrast, it should be understood that when an elementis referred to as being “directly coupled” or “directly connected” toanother element, there are no intervening elements present. Otherexpressions that explain the relationship between elements, such as“between”, “directly between”, “adjacent to”, or “directly adjacent to”,should be construed in the same way.

The terminology used herein is for the purpose of describing particularembodiments only and is not intended to be limiting. As used herein, thesingular forms “a”, “an”, and “the” are intended to include the pluralforms as well, unless the context clearly indicates otherwise. It willbe further understood that the terms “comprise”, “include”, “have”, etc.when used in this specification, specify the presence of statedfeatures, integers, steps, operations, elements, components, and/orcombinations of them but do not preclude the presence or addition of oneor more other features, integers, steps, operations, elements,components, and/or combinations thereof.

FIG. 1 is an assembled perspective view showing a bottom-fixed typerolling pillow according to an embodiment of the present invention. FIG.2 is a bottom perspective view showing the bottom-fixed type rollingpillow according to the embodiment of the present invention. FIG. 3 is aperspective view showing the bottom-fixed type rolling pillow without acushion member according to the embodiment of the present invention.FIG. 4 is a perspective view showing the bottom-fixed type rollingpillow without the cushion member and a slider according to theembodiment of the present invention. FIG. 5 is a structure view showinga cushion moving member according to another embodiment of the presentinvention.

The bottom-fixed type rolling pillow according to the embodiment of thepresent invention severs as a pillow by supporting the head of a userwhen the user sleeps, and is configured to maintain a central axis ofthe user by moving the cushion member in response to movement of theuser's head.

In detail, according to the embodiment of the present invention, thebottom-fixed type rolling pillow may include a base member 100, thecushion member 200, and the cushion moving member 300, as shown in FIGS.1 to 4.

The base member 100 is an element constituting a body of thebottom-fixed type rolling pillow according to the embodiment andprovides support force while being located on the floor.

In particular, the base member 100 is formed in a block shape andlocated on the floor, and has an arcuate-grooved receiving space 110formed on an upper surface thereof so as to receive the head of theuser, thereby receiving and supporting the head of the user by means ofthe cushion member 200 to be described later.

The receiving space 110 may be formed in a ‘C’-shaped section on theupper surface of the base member 100 so as to receive the head of theuser.

The base member 100 has a non-slip pad 120 at a lower surface thereof soas to be prevented from slipping while the non-slip pad 120 supports thelower surface of the base member 100, as shown in FIG. 2.

A plurality of non-slip pads 120 may be provided, and may berespectively provided at vertexes of the lower surface of the basemember 100, and configured to be adjustable in length of each of thenon-slip pads 120 so that a height or an angle of inclination of thebase member 100 may be adjusted.

As an example, each of the non-slip pads 120 may have a multiple-steppedtelescopic bar shape, and fixed while being stretched and contracted inlength by a fastening ring tightening and fixing a connecting portion ofthe multiple-stepped telescopic bar.

The cushion member 200 is configured to directly support the head of theuser.

The cushion member 200 may be formed in a shape supporting the head andthe neck of the user and movably mounted in the receiving space 110 ofthe base member 100 by means of the cushion moving member 300.

The cushion member 200 may be formed in an arc shape corresponding tothe receiving space 110 of the base member 100 and may be rotatablyplaced on an upper surface of the receiving space 110.

The cushion member 200 may be formed of fabric or fiber material andsynthetic resin or leather material, and may have pressing protrusions(not shown) on a surface thereof so as to support the neck or head ofthe user by the pressing protrusions.

The cushion moving member 300 is configured to movably couple thecushion member 200 described above to the receiving space 110 of thebase member 100. Whereby, the cushion member 200 may be moved whenmovement (turning) of the user is generated during the user's sleep, sothat the central axis (center of weight) of the user may be balanced.

When the head or the neck of the user is moved during sleep, the cushionmoving member 300 may move the cushion member 200 while the head or theneck of the user is in contact with the cushion member 200, so that thecenter of the shoulder or body of the user may be balanced withouttwisting.

The cushion moving member 300 may include guide rails 310, a slider 320,and rollers 330, as shown in FIGS. 3 and 4.

The guide rails 310 are configured to provide a moving path of thecushion member 200.

The guide rails 310 may be configured to be extended in at least onedirection of a longitudinal direction or a transverse direction of thereceiving space 110 on the upper surface of the receiving space 110 ofthe base member 100 and to provide the moving path of the cushion member200.

The guide rails 310 may be formed in groove shapes on the upper surfaceof the base member 100 as shown in FIGS. 4 and 6. Otherwise, the guiderails 310 may be extended with a protruding shape.

In detail, the guide rails 310 may include grove-shaped transverse rails311 extended along a longitudinal direction or a horizontal direction(row direction) of the base member 100, as shown in FIG. 4.

Furthermore, as shown in FIG. 5, the guide rails 310 may include thegroove-shaped transverse rails 311 extended along the longitudinaldirection or the horizontal direction (row direction) of the base member100, and groove-shaped longitudinal rails 312, which are extended alonga transverse direction or a vertical direction (column direction) of thebase member 100 and arranged perpendicular to the transverse rails 311.

The transverse rails 311 may be configured such that a plurality oftransverse rails is positioned next to each other as shown in FIG. 4,and configured such that a single transverse rail is provided by beingextended along the longitudinal direction of the base member 100 unlikeshown in FIG. 4.

Furthermore, the longitudinal rails 312 may consist of a singlelongitudinal rail as shown in FIG. 5, and may be configured such that aplurality of longitudinal rails is extended while being positioned nextto each other.

The slider 320 is configured to be moved together with the cushionmember 200. The slider 320 may be movably coupled to the guide rails 310while being fixed to a lower surface of the cushion member 200 and movedalong the guide rails 310 by movement of the user.

Specifically, the slider 320 may have a plate shape having a curvaturecorresponding to the receiving space 110 of the base member 100. Asshown in FIG. 3, the slider 320 may have coupling protrusions 321 fittedinto grooves of the guide rails 310 and may be movably coupled to theguide rails 310.

The coupling protrusions 321 and the guide rails 310 may be configuredto prevent the slider 320 from being arbitrarily separated.

As an example, the coupling protrusions 321 and the guide rails 310 mayhave shapes in which the bottom is wide and the top is narrow. Unlikethe above structure, separate separation prevention protrusions mayprotrude along longitudinal directions of the coupling protrusions 321and separation prevention grooves may be formed along longitudinaldirections of the guide rails 310 so that the separation preventionprotrusions and the separation prevention grooves may be coupled to eachother.

Furthermore, the guide rails 310 may have stoppers (not shown)configured to prevent excessive moving of the slider 320.

The rollers 330 are configured to movably support the slider 320.

More particular, as shown in FIG. 4, the rollers 330 may be configuredto support a lower surface of the slider 320 while being mounted to theupper surface of the base member 100 to be idle-rotated, so that theslider 320 may be moved along the guide rails 310 together with thecushion member 200.

The rollers 330 may include guide wheels 331 having wheel shapes, asshown in FIG. 4.

The guide wheels 331 may have conventional wheel shapes and are coupledto the base member 100 through shafts. The guide wheels 331 may move theslider 320 along the transverse rails 311 while being rotated forward orrearward in directions corresponding to the longitudinal directions ofthe transverse rails 311.

When the rollers 330 include only the guide wheels 331, the rollers 330may support the slider 320 so as to be movable only in the horizontaldirection of the base member.

Meanwhile, the rollers 330 may include guide balls 335 having ballshapes, as shown in FIG. 5.

The guide balls 335 may be formed in spheres to be rotatably mounted tothe base member 100 and rotated in various directions. Accordingly, theguide balls 335 may move the slider 320 while being rotated forward orrearward in directions corresponding to the transverse rails 311 and thelongitudinal rails 312.

In other words, when the guide rails 310 include only the transverserails 311, the rollers 330 may include the guide wheels 331. Inaddition, when the guide rails 310 include both the transverse rails 311and the longitudinal rails 312, the rollers 330 may include the guideballs 335.

Meanwhile, according to the embodiment of the present invention, thebottom-fixed type rolling pillow may include roller brakes 350, as shownin FIG. 5.

The roller brakes 350 are configured to selectively allow movement ofthe slider 320 while selectively restraining the rotation of the rollers330 described above.

In other words, the roller brakes 350 are configured to restrain themovement of the slider 320 so that the cushion member 200 may be used asa fixed type.

The roller brakes 350 may include pressing protrusions 351 as shown inFIG. 5. The pressing protrusions 351 may be installed while protrudingfrom the base member 100 and locked to portions of the rollers 330 orpress the rollers 330.

The pressing protrusions 351 may have locking protrusions (not shown) soas to be locked while pressing the rollers 330, and have return springs(not shown) so as to be returned to initial positions during unlocking.

As described above, in the bottom-fixed type rolling pillow according tothe embodiment of the present invention, the cushion member 200 is movedalong the guide rails 310 together with the slider 320 by the rollers330. Accordingly, the cushion member 200 may efficiently be moved by themovement of the user. Accordingly, the center of the user is maintainedeven by the user's movement, so that the sleep position may bemaintained without twisting the shoulder or the body.

Hereinafter, the effects of the embodiments of the present inventionwill be described in detail with the following experimental examples.

The presented examples are only specific examples of the presentinvention, and are not intended to limit the scope of the presentinvention.

<Experimental Examples>

In order to analyze the effects induced by the bottom-fixed type rollingpillow having the structure as shown in FIGS. 1 to 5, a dynamic study onthe change in the body of users was conducted. The users slept for apredetermined period of time using a first bottom-fixed type rollingpillow with the guide wheel-type rollers and a second bottom-fixed typerolling pillow with the guide ball-type rollers.

(1) User Selection

In order to analyze the effects of the bottom-fixed type rolling pillowon the change in the user's body, 16 men in their 30s who have nohistory of musculoskeletal disorders on the neck or back and in goodhealth were selected as users and the body dynamics study was conducted.All users selected were right-handed in order to minimize the experimenterror, and body measures of the users are shown in Table 1 below.

TABLE 1 Mean SD Age (yrs) 31.6 1.3 Height (cm) 172.7 4.5 Weight (kg)70.4 6.3

(2) Neck Posture Analysis

In order to analyze the effects induced when the users uses thebottom-fixed type rolling pillow, the change in the user's neck postureoccurring during sleep was analyzed, and at this time, a commerciallyavailable general pillow and a memory foam pillow were used as controls.

In order to analyze the neck posture, all 16 users wore comfortableclothes, and reference points (point of ear bead, lateral point ofshoulder, point of back of head, and point of back of neck) necessaryfor measuring the change in the neck posture were marked on the user'sbody, electrode attachment points on the user's body were prepared withalcohol, and surface electrodes of six channels were attached on theuser's body.

With reference points required to measure the change in neck posture ofthe users, each user stood and pictures of them were taken. The userfound the most comfortable posture while lying using the first andsecond bottom-fixed type rolling pillows, the general pillow, or thememory foam pillow, and pictures of the lying neck posture were re-takenwhile the user maintains the most comfortable posture. In order toreduce errors in photographing, a camera was set to a tripod toeliminate the change in position.

As an example, an important factor in functions of the bottom-fixed typerolling pillow or a pillow is to maintain the same natural neck posturewhile the user stands. Maintaining the neck posture naturally means that7 cervical vertebrae are correctly aligned in a straight line to formthe cervical curvature. However, when the cervical vertebrae are notcorrectly aligned and deviates from the center line, shear force isgenerated in a direction opposite to a direction of departure, therebylosing the cervical curvature. At this time, shear force refers to aforce acting in parallel along a specific surface so as to have the samesize and opposite directions on the basis of the specific surface of anobject. When a user uses an inappropriate pillow, the cervical curvaturemay be disturbed, and shear force is generated at a disturbed portion ina direction opposite to a distributed direction. When shear force isgenerated, the stability of the cervical vertebrae is broken. Therefore,the neck angle is close to 0°, the cervical vertebrae may be consideredto be stable.

The user sleeps for 3 hours under the above conditions, and the amountof change in the user's neck angle in the user's correct lying posturewas measured and average values were obtained, and the results are shownin Table 2 below.

TABLE 2 First Second bottom- bottom- fixed type fixed type memoryrolling rolling General foam pillow pillow pillow pillow Amount 7.0315.341 23.016 18.127 of change in neck angle

As shown in Table 2, it is seen that a user who sleeps using thebottom-fixed type rolling pillow has the amount of the change in theneck angle significantly lower than the amount of the change in the neckangle of a user who sleeps using the general pillow or the memory foampillow. In particular, the amount of the change in the neck angle of auser who sleeps using the second bottom-fixed type rolling pillow withthe guide ball-type rollers is lower than other results. In this case,it is seen that the most natural posture may be maintained.

Even when the user's sleep position is changed during sleep using thebottom-fixed type rolling pillow of the present invention, the user'ssleep position may be automatically aligned to maintain the correctlying posture, and the balance of the neck may be maintained to maintainthe correct lying posture. Therefore, it is determined that the mostnatural sleep position may be maintained.

(3) Body Pressure Distribution Measurement

In order to measure the distribution of body pressure when the user liesusing the first and second bottom-fixed type rolling pillows, thegeneral pillow, or the memory foam pillow, body pressure, which is thepressure applied to the head surface was measured using a pressuresensor. As the pressure measurement point, at total 8 points S1 to S8including two points S1 and S2 meeting with a point of the back of thehead, two points S3 and S4 located at upper and lower sides parallel toeach other on the basis of a protruding point of the back of the head,semispinalis capitis S5 and S6, and two points located based on animaginary line parallel to a point of the side head S7 and S8. In orderto reduce the error in the measurement, body pressure was measured aftera sensor was attached to the head surface of the user by using a thincloth with negligible thickness without being directly attached to thehead surface of the user.

As an example, the high body pressure in a specific point means that thebottom-fixed type rolling pillow or a pillow does not distribute theweight of head and the pressure is locally generated. When the localpressure is continuously maintained, there is possibility that is maycause pain at the pressure point.

In the analysis of the actively of the muscles, the bottom-fixed typerolling pillow or a pillow, and in order to find out the distribution ofmuscle activity in the correct lying posture, the body pressure of thehead surface (g/cm 3) was measured, and the result will be described inTable 3.

TABLE 3 First Second bottom- bottom- fixed type fixed type Memoryrolling rolling General foam pillow pillow pillow pillow Body S1 21.420.4 24.9 25.6 pressure S2 21.8 20.8 24.7 31.6 S3 22.6 22.3 32.5 25.0 S422.5 22.4 32.7 25.4 S5 9.3 9.2 5.4 6.2 S6 9.5 9.3 5.7 6.3 S7 7.9 8.8 6.74.9 S8 8.1 9.1 6.6 5.3

As shown in Table 3, it may be seen that pressure is applied to thepoints of the back of the head S1 and S2 and the protruding points ofthe back of the head S3 and S4 on all of the first and secondbottom-fixed type rolling pillows, the general pillow, and the memoryfoam pillow. In the case of the memory foam pillow, due to the shapethereof, the pressure is concentrated on specific portions such as thepoint of the back of the head, so it may be seen that the body pressureis relatively higher on the memory foam pillow than the first and secondbottom-fixed type rolling pillows and the general pillow.

However, users who use the first and second bottom-fixed type rollingpillows can maintain a balanced posture by distributing the pressure ofthe head surface evenly in comparison to a user who uses the generalpillow or the memory foam pillow.

Furthermore, it may be seen that the users who use the first and secondbottom-fixed type rolling pillows have evenly distributed body pressuresince the pillows maintain appropriate form thereof to support theentire head portion when the user body is turned during sleep. On theother hand, for the user who uses the general pillow or the memory foampillow, it may be frequently confirmed that the body pressure isconcentrated on one portion.

Based on the above results, during using the bottom-fixed type rollingpillow according to the embodiments of the present invention, thecushion member is moved along the guide rails together with the sliderby the rollers, thereby providing the structure in which the cushionmember is efficiently moved by the movement of the user. Accordingly, itmay be seen that the present invention assists the user to maintain thecorrect sleep posture without twisting the shoulder or the neck by thecentral axis of the cushion member maintained even by the movement ofthe user.

In particular, the second bottom-fixed type rolling pillow with theguide wheel-type rollers further assists the user to maintain thecorrect sleep posture as the cushion member may be moved both thelongitudinal and transverse directions.

Although preferred embodiments of the present invention have beendescribed for illustrative purposes, those skilled in the art willappreciate that various modifications, additions and substitutions arepossible, without departing from the scope and spirit of the inventionas disclosed in the accompanying claims. Accordingly, it should beunderstood that the present description is not intended to limit thepresent invention to those exemplary embodiments. For example, eachelement described as a single type may be implemented in a distributedmanner, and elements described as a distributed type may be implementedin a coupled manner.

The patent right of the present invention should be defined by the scopeand spirit of the invention as disclosed in the accompanying claims.Accordingly, it should be understood that the present invention includesvarious modifications, additions and substitutions without departingfrom the scope and spirit of the invention as disclosed in theaccompanying claims.

DESCRIPTION OF REFERENCE NUMERALS

100: base member 110: receiving space

120: non-slip pad 200: cushion member

300: cushion moving member 310: guide rails

311: transverse rails 312: longitudinal rails

320: slider 330: rollers

331: guide wheels 335: guide balls

350: roller brakes 351: pressing protrusions

1. A bottom-fixed type rolling pillow comprising: a base memberproviding a supporting force while being located on a floor, and havingan arcuate-grooved receiving space formed on an upper surface thereof soas to receive a head of a user in the receiving space; a cushion membermovably mounted in the receiving space of the base member and configuredto support the head of the user; and a cushion moving member movablycoupling the cushion member to the base member, and configured to allowthe cushion member to be moved by movement of the user.
 2. Thebottom-fixed type rolling pillow of claim 1, wherein the cushion movingmember comprises: guide rails formed in at least one direction of alongitudinal direction and a transverse direction of an upper surface ofthe receiving space of the base member so as to provide a moving path ofthe cushion member; a slider movably coupled to the guide rails whilebeing fixed to a lower surface of the cushion member and configured tobe moved along the guide rails; and rollers mounted to the upper surfaceof the base member so as to be idle-rotated and configured to supportthe slider.
 3. The bottom-fixed type rolling pillow of claim 2, whereinthe guide rails comprises transverse rails having groove shapes extendedalong the longitudinal direction of the base member, and the rollershave guide wheels which have wheel shapes and are configured to berotated forward or rearward in directions corresponding to longitudinaldirections of the transverse rails so as to move the slider along thetransverse rails.
 4. The bottom-fixed type rolling pillow of claim 2,wherein the guide rails comprises: transverse rails having groove shapesextended along the longitudinal direction of the base member; andlongitudinal rails having groove shapes extended along the transversedirection of the base member and arranged perpendicular to thetransverse rails, and the rollers have guide balls which have ballshapes and are configured to be rotated forward or rearward indirections corresponding to the transverse rails and the longitudinalrails so as to move the slider along the transverse rails and thelongitudinal rails.
 5. The bottom-fixed type rolling pillow of claim 2,wherein the cushion moving member further comprises roller brakesconfigured to selectively allow movement of the slider while selectivelyrestraining rotation of the rollers.
 6. The bottom-fixed type rollingpillow of claim 5, wherein the roller brakes comprise pressingprotrusions, which are mounted to the base member and configured to belocked to portions of the rollers by pressure of the user to prevent therollers from being arbitrarily rotated.